# Extra EA-400
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{{Short description|Six-seat, single-engined, high-wing monoplane}}
{{Infobox aircraft
| name = Extra EA-400
| logo =
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| image = Extra 400 D-EXKG on runway vl.jpg
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| other_names =
| aircraft_type = Six-seat utility aircraft
| aim =
| outcome =
| related =
| national_origin = [Germany](/source/Germany)
| manufacturer = [Extra Flugzeugbau GmbH](/source/Extra_Aircraft)
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| status = In private service
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| introduction = 1998
| retired =
| first_flight = 23 April 1996
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The '''Extra EA-400''' is a six-seat, single-engined, high-wing [monoplane](/source/monoplane) produced by [Extra Flugzeugbau](/source/Extra_Flugzeugbau) GmbH. The EA-400 is powered by a liquid cooled [Continental Voyager](/source/Continental_Voyager) [turbocharged](/source/Turbocharger) [piston engine](/source/piston_engine).
==Design==
{{refimprove-section|date=January 2023}}
Started by [Walter Extra](/source/Walter_Extra), the company manufactures mostly [aerobatic](/source/aerobatic) airplanes like the [Extra EA-300](/source/Extra_EA-300) series. The EA-400 is a [pressurized](/source/pressurized) airplane for travelling, featuring [carbon fiber](/source/carbon_fiber) construction, a [cantilever](/source/cantilever)ed high wing, and a [water-cooled](/source/water-cooled) Teledyne [Continental TSIOL-550](/source/Continental_TSIOL-550)C engine. This engine is immune to [shock cooling](/source/shock_cooling) during descents, but more demanding to operate.
The [airframe](/source/airframe) was designed with engineering help from the [Technical University of Delft](/source/Technical_University_of_Delft) in Holland under leadership from Prof. [Egbert Torenbeek](/source/Egbert_Torenbeek) and with [Loek Boermans](/source/Loek_Boermans) for [airfoil](/source/airfoil) design.
The aircraft's [Fowler flaps](/source/Fowler_flaps) feature a completely recessed mechanism and reduce [stall speed](/source/stall_speed) from {{cvt|76 to 58|knots|km/h}} at maximum weight.
The [landing gear](/source/landing_gear) was designed and manufactured by [Gomolzig](/source/Gomolzig) in Germany. It is unusual in its geometry and sealed behind doors once retracted. Its complexity contributes to the aircraft's operating costs.
The optional [weather radar](/source/weather_radar) pod is blended into the left wing tip.
All Extra 400 aircraft have been retrofitted with the flight into known [icing conditions](/source/icing_conditions) modification. Deicing equipment consists of Teflon [boots](/source/Deicing_boot), a heated propeller, a heated windscreen for the pilot side, dual heated [pitot ports](/source/Pitot-static_system), and a heated stall sensor connected to the autopilot.
The deicing equipment is powered by a pair of large alternators (100 and 85 amps) that also feed the [AC](/source/Air_conditioning) compressor located in the tail.
The cockpit has good forward and lateral visibility. Avionics are conventional with a full set of instruments for each of the two crew and a central stack.
[STC](/source/Supplemental_type_certificate)s for upgrades to modern GPS navigators and "glass cockpit" displays are available, but the only autopilot certified is the STEC 55X.
An improved [propeller](/source/propeller) with the "b" type blades is available from [MT-Propeller](/source/MT-Propeller) under FAA Form 337 Major Modification. It increases climb performance and cruise speed. Time to climb to FL200 is 20 minutes and cruise speed at 75% power ranges from {{cvt|200|kn|km/h}} at 16'000 ft to a maximum of {{cvt|220|kn|km/h}} at FL 250 (at [MTOW](/source/MTOW) and under [ISA](/source/International_Standard_Atmosphere) conditions).
The passenger cabin is air-conditioned and offers four seats in a club arrangement with a folding table. It is similar in size to that of the smaller jets such as the [Eclipse 550](/source/Eclipse_550).
The Extra 400 was costly to manufacture, requiring 16'000 hours of labor, and carried a price tag of $1 million. Only 27 aircraft were built before the company ran into financial trouble.
== Accidents & Incidents ==
* A fatal accident occurred upon delivery of the first customer aircraft on August 21, 1998, due to flying into a storm, and this caused German authorities to impose a type rating on Extra 400 pilots which was withdrawn in December 2015.[{{Cite web|url=https://aviation-safety.net/wikibase/wiki.php?id=147170|title=Accident Extra EA-400 D-EGBU, 21 Aug 1998|last=Ranter|first=Harro|website=aviation-safety.net|access-date=2018-08-08}}]
* Another Extra 400 was lost to an engine failure on March 10, 2018, causing the aircraft to ditch in a field in Sharpsburg North Carolina. The sole occupant was not injured.[{{Cite web|url=https://aviation-safety.net/wikibase/wiki.php?id=207334|title=Incident Extra EA-400 N14EX, 10 Mar 2018|last=Ranter|first=Harro|website=aviation-safety.net|access-date=2018-08-08}}]
* A third Extra 400 was lost in Oklahoma on August 4, 2018, due to unknown circumstances that caused the aircraft to lose altitude after takeoff and crash and burn with 5 fatalities.[{{Cite news|url=https://www.nytimes.com/aponline/2018/08/04/us/ap-us-small-plane-crash-oklahoma.html?partner=IFTTT|title=Authorities: 5 Killed in Small Plane Crash in North Oklahoma|access-date=2018-08-08|language=en}}][{{Cite news|url=https://www.foxnews.com/us/oklahoma-plane-crash-victims-were-from-kansas-authorities-say|title=Oklahoma plane crash victims were from Kansas, authorities say|last=Dedaj|first=Paulina|date=2018-08-04|work=Fox News|access-date=2018-08-08|language=en-US}}]
* Emergency landing on 12 June 2020 after engine failure into a crop field. Due to limited visibility caused by leaking coolant into onto the windshield and unstable descent, the landing gear has collapsed, causing the wings to strike ground and the aircraft subsequently cartwheeled forwards, shearing off both wings. Single person, the pilot on-board was able to walk away from the accident with minor bruises. Aircraft is currently stored in [LKPM](/source/LKPM) in damaged condition, possibly written off.[{{Cite web|url=https://uzpln.cz/pdf/20201218123141.pdf|title= ZÁVĚREČNÁ ZPRÁVA o odborném zjišťování příčin letecké nehody letounu EXTRA EA 400|access-date=2020-12-28|language=cs|archive-url=https://web.archive.org/web/20221114204101/https://uzpln.cz/pdf/20201218123141.pdf|archive-date=2022-11-14|url-status=live}}]
* On 17 March 2025 at 5.22 p.m. an Extra EA-400 crashed on the northern edge of the village of La Punt Chamues-ch (Switzerland) in a populated area and burned out completely. The propeller plane had taken off from [Samedan airfield](/source/Samedan_Airport) at 5.20 p.m. bound for [Roskilde Airport](/source/Roskilde_Airport), Denmark. All three occupants of the plane died. The plane had arrived from Denmark on March 13 and was on its return flight. [{{Cite web|url=https://www.bluewin.ch/en/news/small-plane-crashes-near-la-punt-gr-all-occupants-dead-2611374.html|title=Small plane crashes near La Punt GR - all occupants dead|access-date=2025-03-18|language=en}}]
==Specifications (Extra EA-400)==
{{Aircraft specs
|ref=Extra EA-400 Standard Specification, Pilots Information Manual[{{cite web|url=http://www.extraaircraft.com/pdf/EA-400Spec72-0404.pdf|title=Extra EA-400 Standard Specification|accessdate=2009-02-22|publisher=Extra Aircraft|archive-url=https://web.archive.org/web/20070412202943/http://www.extraaircraft.com/pdf/EA-400Spec72-0404.pdf|archive-date=2007-04-12|url-status=dead}}][{{cite web|url=http://www.extraaircraft.com/pilots_manual/Information_Manual_EA400.pdf|title=Extra EA-400 pilot Information Manual|last=|first=|date=|accessdate=2009-02-22|publisher=Extra Flugzeugproduktions-und Vertriebs-GmbH}}{{Dead link|date=August 2019 |bot=InternetArchiveBot |fix-attempted=yes }}]
|prime units?=met
|crew= 1
|capacity= 5 passengers
|length m=9.57
|span m=11.5
|height m=3.09
|empty weight kg=1500
|max takeoff weight kg=1,999
|eng1 number=1
|eng1 name=[Continental TSIOL-550-C Voyager](/source/Continental_TSIOL-550-C_Voyager)
|eng1 type=
:::6-cyl. horizontally opposed liquid cooled turbocharged intercooled fuel-injected direct drive piston engine
|eng1 kw=261
|eng1 note= for takeoff, {{convert|242|kW|hp|abbr=on|0}} continuous
|cruise speed kts=203
|cruise speed note= [KTAS](/source/Knots_true_airspeed) at MTOW, 75% power, FL180 {{convert|5,500|m|ft|abbr=on|0}}
|never exceed speed kts=219
|range nmi=1,100
|ceiling ft=25,000
|climb rate ftmin=1,400
|climb rate note=at [MTOW](/source/MTOW) - [ISA](/source/International_Standard_Atmosphere)
}}
==See also==
{{aircontent
|related=
* [Extra EA-500](/source/Extra_EA-500)
|similar aircraft=
|lists=
|see also=
}}
==References==
{{reflist}}
==External links==
* European Aviation Safety Agency: [http://www.easa.europa.eu/system/files/dfu/EASA-TCDS-A.011_Extra_400-04-24022012.pdf ''TYPE-CERTIFICATE DATA SHEET'' (EA 400)]
{{Extra aircraft}}
{{DEFAULTSORT:Extra Ea-400}}
Category:2000s German civil utility aircraft
Category:Extra aircraft
Category:High-wing aircraft
Category:T-tail aircraft
Category:Aircraft first flown in 1996
Category:Aircraft with retractable tricycle landing gear
Category:Single-engined tractor aircraft
Category:Single-engined piston aircraft
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Adapted from the Wikipedia article [Extra EA-400](https://en.wikipedia.org/wiki/Extra_EA-400) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Extra_EA-400?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.